Adds groups to a group.
Any invalid memberGroupIDs will be silently ignored. Passing a non-existent parentGroupID will result in a PortalException. Note: Since this method performs multiple operations, any exception thrown will have details of each failure.
| Exception Type | Condition |
|---|---|
| PortalException | The operation resulted in an error on the portal. |
| ArgumentException | The method passed an invalid parent group ID. |
IUserGroupManager Interface | Plumtree.Remote.PRC Namespace